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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-changelog] Split mmu_update() hypercall into mmu_update() and mmuext_op().
ChangeSet 1.1400, 2005/03/30 19:17:26+01:00, kaf24@xxxxxxxxxxxxxxxxxxxx
Split mmu_update() hypercall into mmu_update() and mmuext_op().
All MMUEXT_* ops are now done via the latter hypercall. This allows
more arguments to be passed in a nicer way to mmuext operations.
Linux 2.4, 2.6 and control tools all use the new interface. The BSDs
will need some work, but shouldn't be too hard (and they can be moved
to writable pagetables at the same time :-) ).
Signed-off-by: Keir Fraser <keir@xxxxxxxxxxxxx>
freebsd-5.3-xen-sparse/i386-xen/i386-xen/xen_machdep.c | 2
freebsd-5.3-xen-sparse/i386-xen/xen/netfront/xn_netfront.c | 2
linux-2.4.29-xen-sparse/arch/xen/kernel/traps.c | 10
linux-2.4.29-xen-sparse/arch/xen/mm/ioremap.c | 19
linux-2.4.29-xen-sparse/mm/memory.c | 2
linux-2.6.11-xen-sparse/arch/xen/i386/kernel/traps.c | 9
linux-2.6.11-xen-sparse/arch/xen/i386/mm/hypervisor.c | 84 -
linux-2.6.11-xen-sparse/arch/xen/i386/mm/ioremap.c | 24
linux-2.6.11-xen-sparse/drivers/xen/blkback/blkback.c | 2
linux-2.6.11-xen-sparse/drivers/xen/netback/netback.c | 65
linux-2.6.11-xen-sparse/drivers/xen/netfront/netfront.c | 3
linux-2.6.11-xen-sparse/drivers/xen/privcmd/privcmd.c | 24
linux-2.6.11-xen-sparse/drivers/xen/usbback/usbback.c | 2
linux-2.6.11-xen-sparse/include/asm-xen/asm-i386/pgtable.h | 3
linux-2.6.11-xen-sparse/include/asm-xen/hypervisor.h | 25
netbsd-2.0-xen-sparse/sys/arch/xen/xen/if_xennet.c | 6
tools/libxc/xc_linux_build.c | 9
tools/libxc/xc_linux_restore.c | 15
tools/libxc/xc_plan9_build.c | 15
tools/libxc/xc_private.c | 46
tools/libxc/xc_private.h | 3
tools/libxc/xc_vmx_build.c | 9
xen/arch/x86/mm.c | 878 +++++++------
xen/arch/x86/x86_32/entry.S | 2
xen/arch/x86/x86_64/entry.S | 1
xen/include/public/xen.h | 137 +-
26 files changed, 755 insertions(+), 642 deletions(-)
diff -Nru a/freebsd-5.3-xen-sparse/i386-xen/i386-xen/xen_machdep.c
b/freebsd-5.3-xen-sparse/i386-xen/i386-xen/xen_machdep.c
--- a/freebsd-5.3-xen-sparse/i386-xen/i386-xen/xen_machdep.c 2005-03-30
14:04:05 -05:00
+++ b/freebsd-5.3-xen-sparse/i386-xen/i386-xen/xen_machdep.c 2005-03-30
14:04:05 -05:00
@@ -540,7 +540,7 @@
MCL_QUEUE[MCL_IDX].op = __HYPERVISOR_update_va_mapping;
MCL_QUEUE[MCL_IDX].args[0] = (unsigned long)va;
MCL_QUEUE[MCL_IDX].args[1] = (unsigned long)ma;
- MCL_QUEUE[MCL_IDX].args[2] = UVMF_INVLPG;
+ MCL_QUEUE[MCL_IDX].args[2] = UVMF_INVLPG_LOCAL;
mcl_increment_idx();
}
diff -Nru a/freebsd-5.3-xen-sparse/i386-xen/xen/netfront/xn_netfront.c
b/freebsd-5.3-xen-sparse/i386-xen/xen/netfront/xn_netfront.c
--- a/freebsd-5.3-xen-sparse/i386-xen/xen/netfront/xn_netfront.c
2005-03-30 14:04:06 -05:00
+++ b/freebsd-5.3-xen-sparse/i386-xen/xen/netfront/xn_netfront.c
2005-03-30 14:04:06 -05:00
@@ -440,7 +440,7 @@
PT_UPDATES_FLUSH();
/* After all PTEs have been zapped we blow away stale TLB entries. */
- xn_rx_mcl[i-1].args[2] = UVMF_FLUSH_TLB;
+ xn_rx_mcl[i-1].args[2] = UVMF_TLB_FLUSH_LOCAL;
/* Give away a batch of pages. */
xn_rx_mcl[i].op = __HYPERVISOR_dom_mem_op;
diff -Nru a/linux-2.4.29-xen-sparse/arch/xen/kernel/traps.c
b/linux-2.4.29-xen-sparse/arch/xen/kernel/traps.c
--- a/linux-2.4.29-xen-sparse/arch/xen/kernel/traps.c 2005-03-30 14:04:04
-05:00
+++ b/linux-2.4.29-xen-sparse/arch/xen/kernel/traps.c 2005-03-30 14:04:04
-05:00
@@ -316,15 +316,7 @@
__asm__ __volatile__ ( "sldt %0" : "=r" (ldt) );
if ( ldt == 0 )
{
- mmu_update_t u;
- u.ptr = MMU_EXTENDED_COMMAND;
- u.ptr |= (unsigned long)&default_ldt[0];
- u.val = MMUEXT_SET_LDT | (5 << MMUEXT_CMD_SHIFT);
- if ( unlikely(HYPERVISOR_mmu_update(&u, 1, NULL) < 0) )
- {
- show_trace(NULL);
- panic("Failed to install default LDT");
- }
+ xen_set_ldt((unsigned long)&default_ldt[0], 5);
return;
}
}
diff -Nru a/linux-2.4.29-xen-sparse/arch/xen/mm/ioremap.c
b/linux-2.4.29-xen-sparse/arch/xen/mm/ioremap.c
--- a/linux-2.4.29-xen-sparse/arch/xen/mm/ioremap.c 2005-03-30 14:04:05
-05:00
+++ b/linux-2.4.29-xen-sparse/arch/xen/mm/ioremap.c 2005-03-30 14:04:05
-05:00
@@ -113,12 +113,7 @@
int i;
unsigned long start_address;
#define MAX_DIRECTMAP_MMU_QUEUE 130
- mmu_update_t u[MAX_DIRECTMAP_MMU_QUEUE], *w, *v;
-
- u[0].ptr = MMU_EXTENDED_COMMAND;
- u[0].val = MMUEXT_SET_FOREIGNDOM;
- u[0].val |= (unsigned long)domid << 16;
- v = w = &u[1];
+ mmu_update_t u[MAX_DIRECTMAP_MMU_QUEUE], *v = u;
start_address = address;
@@ -130,11 +125,11 @@
__direct_remap_area_pages( mm,
start_address,
address-start_address,
- w);
+ u);
- if ( HYPERVISOR_mmu_update(u, v - u, NULL) < 0 )
+ if ( HYPERVISOR_mmu_update(u, v - u, NULL, domid) < 0 )
return -EFAULT;
- v = w;
+ v = u;
start_address = address;
}
@@ -149,14 +144,14 @@
v++;
}
- if ( v != w )
+ if ( v != u )
{
/* get the ptep's filled in */
__direct_remap_area_pages(mm,
start_address,
address-start_address,
- w);
- if ( unlikely(HYPERVISOR_mmu_update(u, v - u, NULL) < 0) )
+ u);
+ if ( unlikely(HYPERVISOR_mmu_update(u, v - u, NULL, domid) < 0) )
return -EFAULT;
}
diff -Nru a/linux-2.4.29-xen-sparse/mm/memory.c
b/linux-2.4.29-xen-sparse/mm/memory.c
--- a/linux-2.4.29-xen-sparse/mm/memory.c 2005-03-30 14:04:05 -05:00
+++ b/linux-2.4.29-xen-sparse/mm/memory.c 2005-03-30 14:04:05 -05:00
@@ -911,7 +911,7 @@
{
#ifdef CONFIG_XEN
if ( likely(vma->vm_mm == current->mm) ) {
- HYPERVISOR_update_va_mapping(address, entry, UVMF_INVLPG);
+ HYPERVISOR_update_va_mapping(address, entry, UVMF_INVLPG_LOCAL);
} else {
set_pte(page_table, entry);
flush_tlb_page(vma, address);
diff -Nru a/linux-2.6.11-xen-sparse/arch/xen/i386/kernel/traps.c
b/linux-2.6.11-xen-sparse/arch/xen/i386/kernel/traps.c
--- a/linux-2.6.11-xen-sparse/arch/xen/i386/kernel/traps.c 2005-03-30
14:04:05 -05:00
+++ b/linux-2.6.11-xen-sparse/arch/xen/i386/kernel/traps.c 2005-03-30
14:04:05 -05:00
@@ -465,14 +465,7 @@
unsigned long ldt;
__asm__ __volatile__ ("sldt %0" : "=r" (ldt));
if (ldt == 0) {
- mmu_update_t u;
- u.ptr = MMU_EXTENDED_COMMAND;
- u.ptr |= (unsigned long)&default_ldt[0];
- u.val = MMUEXT_SET_LDT | (5 << MMUEXT_CMD_SHIFT);
- if (unlikely(HYPERVISOR_mmu_update(&u, 1, NULL) < 0)) {
- show_trace(NULL, (unsigned long *)&u);
- panic("Failed to install default LDT");
- }
+ xen_set_ldt((unsigned long)&default_ldt[0], 5);
return;
}
}
diff -Nru a/linux-2.6.11-xen-sparse/arch/xen/i386/mm/hypervisor.c
b/linux-2.6.11-xen-sparse/arch/xen/i386/mm/hypervisor.c
--- a/linux-2.6.11-xen-sparse/arch/xen/i386/mm/hypervisor.c 2005-03-30
14:04:05 -05:00
+++ b/linux-2.6.11-xen-sparse/arch/xen/i386/mm/hypervisor.c 2005-03-30
14:04:05 -05:00
@@ -52,7 +52,7 @@
mmu_update_t u;
u.ptr = virt_to_machine(ptr);
u.val = val;
- BUG_ON(HYPERVISOR_mmu_update(&u, 1, NULL) < 0);
+ BUG_ON(HYPERVISOR_mmu_update(&u, 1, NULL, DOMID_SELF) < 0);
}
void xen_l2_entry_update(pmd_t *ptr, pmd_t val)
@@ -60,79 +60,79 @@
mmu_update_t u;
u.ptr = virt_to_machine(ptr);
u.val = pmd_val_ma(val);
- BUG_ON(HYPERVISOR_mmu_update(&u, 1, NULL) < 0);
+ BUG_ON(HYPERVISOR_mmu_update(&u, 1, NULL, DOMID_SELF) < 0);
}
-void xen_pt_switch(unsigned long ptr)
+void xen_machphys_update(unsigned long mfn, unsigned long pfn)
{
mmu_update_t u;
- u.ptr = phys_to_machine(ptr) | MMU_EXTENDED_COMMAND;
- u.val = MMUEXT_NEW_BASEPTR;
- BUG_ON(HYPERVISOR_mmu_update(&u, 1, NULL) < 0);
+ u.ptr = (mfn << PAGE_SHIFT) | MMU_MACHPHYS_UPDATE;
+ u.val = pfn;
+ BUG_ON(HYPERVISOR_mmu_update(&u, 1, NULL, DOMID_SELF) < 0);
+}
+
+void xen_pt_switch(unsigned long ptr)
+{
+ struct mmuext_op op;
+ op.cmd = MMUEXT_NEW_BASEPTR;
+ op.mfn = pfn_to_mfn(ptr >> PAGE_SHIFT);
+ BUG_ON(HYPERVISOR_mmuext_op(&op, 1, NULL, DOMID_SELF) < 0);
}
void xen_tlb_flush(void)
{
- mmu_update_t u;
- u.ptr = MMU_EXTENDED_COMMAND;
- u.val = MMUEXT_TLB_FLUSH;
- BUG_ON(HYPERVISOR_mmu_update(&u, 1, NULL) < 0);
+ struct mmuext_op op;
+ op.cmd = MMUEXT_TLB_FLUSH_LOCAL;
+ BUG_ON(HYPERVISOR_mmuext_op(&op, 1, NULL, DOMID_SELF) < 0);
}
void xen_invlpg(unsigned long ptr)
{
- mmu_update_t u;
- u.ptr = (ptr & PAGE_MASK) | MMU_EXTENDED_COMMAND;
- u.val = MMUEXT_INVLPG;
- BUG_ON(HYPERVISOR_mmu_update(&u, 1, NULL) < 0);
+ struct mmuext_op op;
+ op.cmd = MMUEXT_INVLPG_LOCAL;
+ op.linear_addr = ptr & PAGE_MASK;
+ BUG_ON(HYPERVISOR_mmuext_op(&op, 1, NULL, DOMID_SELF) < 0);
}
void xen_pgd_pin(unsigned long ptr)
{
- mmu_update_t u;
- u.ptr = phys_to_machine(ptr) | MMU_EXTENDED_COMMAND;
- u.val = MMUEXT_PIN_L2_TABLE;
- BUG_ON(HYPERVISOR_mmu_update(&u, 1, NULL) < 0);
+ struct mmuext_op op;
+ op.cmd = MMUEXT_PIN_L2_TABLE;
+ op.mfn = pfn_to_mfn(ptr >> PAGE_SHIFT);
+ BUG_ON(HYPERVISOR_mmuext_op(&op, 1, NULL, DOMID_SELF) < 0);
}
void xen_pgd_unpin(unsigned long ptr)
{
- mmu_update_t u;
- u.ptr = phys_to_machine(ptr) | MMU_EXTENDED_COMMAND;
- u.val = MMUEXT_UNPIN_TABLE;
- BUG_ON(HYPERVISOR_mmu_update(&u, 1, NULL) < 0);
+ struct mmuext_op op;
+ op.cmd = MMUEXT_UNPIN_TABLE;
+ op.mfn = pfn_to_mfn(ptr >> PAGE_SHIFT);
+ BUG_ON(HYPERVISOR_mmuext_op(&op, 1, NULL, DOMID_SELF) < 0);
}
void xen_pte_pin(unsigned long ptr)
{
- mmu_update_t u;
- u.ptr = phys_to_machine(ptr) | MMU_EXTENDED_COMMAND;
- u.val = MMUEXT_PIN_L1_TABLE;
- BUG_ON(HYPERVISOR_mmu_update(&u, 1, NULL) < 0);
+ struct mmuext_op op;
+ op.cmd = MMUEXT_PIN_L1_TABLE;
+ op.mfn = pfn_to_mfn(ptr >> PAGE_SHIFT);
+ BUG_ON(HYPERVISOR_mmuext_op(&op, 1, NULL, DOMID_SELF) < 0);
}
void xen_pte_unpin(unsigned long ptr)
{
- mmu_update_t u;
- u.ptr = phys_to_machine(ptr) | MMU_EXTENDED_COMMAND;
- u.val = MMUEXT_UNPIN_TABLE;
- BUG_ON(HYPERVISOR_mmu_update(&u, 1, NULL) < 0);
+ struct mmuext_op op;
+ op.cmd = MMUEXT_UNPIN_TABLE;
+ op.mfn = pfn_to_mfn(ptr >> PAGE_SHIFT);
+ BUG_ON(HYPERVISOR_mmuext_op(&op, 1, NULL, DOMID_SELF) < 0);
}
void xen_set_ldt(unsigned long ptr, unsigned long len)
{
- mmu_update_t u;
- u.ptr = ptr | MMU_EXTENDED_COMMAND;
- u.val = (len << MMUEXT_CMD_SHIFT) | MMUEXT_SET_LDT;
- BUG_ON(HYPERVISOR_mmu_update(&u, 1, NULL) < 0);
-}
-
-void xen_machphys_update(unsigned long mfn, unsigned long pfn)
-{
- mmu_update_t u;
- u.ptr = (mfn << PAGE_SHIFT) | MMU_MACHPHYS_UPDATE;
- u.val = pfn;
- BUG_ON(HYPERVISOR_mmu_update(&u, 1, NULL) < 0);
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